使用 Laravel 从表单更新数据库记录 - 请求不拉取变量

问：

我是Laravel的新手，我正在尝试通过表单更新授予人的详细信息，但是数据库表中的记录没有注册任何更改。问题似乎与请求未拾取存储在变量中的数据有关，因为当代码替换为 时，数据库表确实更新为“updated_data”字符串。为了清楚起见，我将包含现有代码的片段。对此问题的任何帮助将不胜感激！$grantor->grantor_name= $request->input('grantor_name');$grantor->grantor_name= "updated_data";

授予者控制器文件

public function update(Request $request, $id)
    {
        $grantor = Grantor::find($id);
        $grantor->grantor_name= $request->input('grantor_name');
        $grantor->save();

Grantors.edit.blade 文件

<div class="flex-1 px-10">
      <form method="post" action="{{route('grantors.update', $grantor->id )}}" class="is-readonly"> 
     @csrf
      
        <div class="row">
            @if ($errors->any()) <span>{{ $errors }}</span> @endif
         </div>
         <div class="h-auto md:h-96">

            <!-- item -->
            <div x-data=" {isOpen : false} " class="pt-2 pb-4 border-b border-divider">
              <div @click="isOpen = !isOpen"
                class="flex items-center cursor-pointer text-neutral-darker hover:text-primary-hover"
                :class="{'font-bold' : isOpen}">
                <span class="text-xl md:xl">Grantor Details</span>
                <img class="mb-1 duration-300 ml-4 inset-0 h-6 w-6" :class="{'transform rotate-180' : isOpen}"
                    src="../../img/icon-arrow-down.png" alt="Dropdown-arrow">
              </div>
              <div x-show.transition.duration.300ms.origin.bottom="isOpen" x-cloak @click.away="isOpen = false"
                class="pt-3 text-sm text-neutral">
                 @if($is_editable)
                <div class="flex justify-end">
                <button type="button" class="btn btn-default btn-edit js-edit"><img class="mb-1 duration-300 ml-4 inset-0 h-6 w-6" src="../../img/edit-icon.svg" alt="edit icon"></button>
                <button type="button" class="btn btn-default btn-save js-save"><img class="mb-1 duration-300 ml-4 inset-0 h-6 w-6" src="../../img/save-icon.svg" alt="save icon"></button>
                </div>
                @endif 
                <form class="w-full">
                  <div class="px-6 sm:px-6">
                   <div class="md:flex items-center">
                    <div class="w-full md:w-1/2 flex flex-col">
                      <div class="md:flex md:items-center">
                        <label for="grantor_name" class="font-bold text-neutral-darker leading-none pr-4" for="inline-full-name" disabled>Grantor/ Company/ Organisation Name *</label>
                        <input class="leading-none text-gray-900 py-2 px-4 w-80 focus:outline-none focus:border-blue-700 mt-4 bg-gray-100 border rounded border-gray-200 is-disabled @error('grantor_name') is-invalid @enderror" name="grantor_name" value="{{ $grantor->grantor_name }}" id="grantor_name" type="text" disabled >
                    </div>
                  </div>
                </div>

租户路由文件

Route::get('/grantors/{id}/edit', [App\Http\Controllers\GrantorController::class, 'edit'])->name('grantors.edit');
Route::post('/grantors/{id}/update', [App\Http\Controllers\GrantorController::class, 'update'])->name('grantors.update');

设保人模型

protected $table = 'grantors';
protected $fillable= [
    'grantor_name'
]);